not to render invisible objects in an animation, please help

[Anonymous]

I have an animation demo, as follow:

animation-demo.zip

animation description:

• 0-60 frame, the door opens;
• 70-100 frame,the three helicopters move into the red box;
• 110-140 frame, the door closes;
• 150-210 frame, the box moves to another position.

Question:

Between 140-210 frame, the three helicopters are in the red box and invisible, I think if not to render the three helicopters at 140-210 frame, rendering speed will increase.

Is it possible that not to render the three helicopters at 140-210 frame? If possible, how to do it?

[madsd · Accepted solution]

- Leave the range out from main render session.
- Send a second render job from 110-140 to same folder, same names, where you have momentatily deleted the 3 helicopters.